- Added solutions by Laurent Rosenfeld.

24 files changed, 2809 insertions, 2756 deletions

diff --git a/challenge-279/laurent-rosenfeld/blog.txt b/challenge-279/laurent-rosenfeld/blog.txt
new file mode 100644
index 0000000000..69bc279ddd
--- /dev/null
+++ b/challenge-279/laurent-rosenfeld/blog.txt
@@ -0,0 +1 @@
+https://blogs.perl.org/users/laurent_r/2024/07/perl-weekly-challenge-279-sort-letters.html
diff --git a/challenge-279/laurent-rosenfeld/perl/ch-1.pl b/challenge-279/laurent-rosenfeld/perl/ch-1.pl
new file mode 100644
index 0000000000..ec5112e124
--- /dev/null
+++ b/challenge-279/laurent-rosenfeld/perl/ch-1.pl
@@ -0,0 +1,18 @@
+use strict;
+use warnings;
+use feature 'say';
+
+sub sort_letters {
+    my @letters = @{$_[0]};
+    my @indices = @{$_[1]};
+    return map $_->[0], sort { $$a[1] <=> $$b[1] }
+    map [ $letters[$_], $indices[$_] ], 0..$#letters;
+}
+
+my @tests = ( [ [< R E P L>], [<3 2 1 4>] ],
+              [ [<A U R K>], [<2 4 1 3>] ],
+              [ [<O H Y N P T>], [<5 4 2 6 1 3>] ] );
+for my $test (@tests) {
+    printf "%-14s => ", "@{$test->[0]}";
+    say sort_letters $test->[0], $test->[1];
+}
diff --git a/challenge-279/laurent-rosenfeld/raku/ch-1.raku b/challenge-279/laurent-rosenfeld/raku/ch-1.raku
new file mode 100644
index 0000000000..f767c1c042
--- /dev/null
+++ b/challenge-279/laurent-rosenfeld/raku/ch-1.raku
@@ -0,0 +1,11 @@
+sub sort-letters3 (@let, @w) {
+    join "", map { $_[0] }, sort { $_[1] }, zip @let, @w;
+}
+
+my @tests = (< R E P L>, <3 2 1 4>),
+            (<A U R K>, <2 4 1 3>),
+            (<O H Y N P T>, <5 4 2 6 1 3>);
+for @tests -> @test {
+    printf "%-14s => ", "@test[0]";
+    say sort-letters3 @test[0], @test[1];
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 9fe18ec305..46840df852 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,28 +1,29 @@
 {
+   "xAxis" : {
+      "type" : "category"
+   },
+   "subtitle" : {
+      "text" : "[Champions: 20] Last updated at 2024-07-24 16:51:11 GMT"
+   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
    },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
-      }
+   "chart" : {
+      "type" : "column"
    },
-   "subtitle" : {
-      "text" : "[Champions: 19] Last updated at 2024-07-23 15:26:26 GMT"
+   "title" : {
+      "text" : "The Weekly Challenge - 279"
    },
    "series" : [
       {
+         "colorByPoint" : 1,
          "data" : [
             {
-               "name" : "Ali Moradi",
+               "y" : 5,
                "drilldown" : "Ali Moradi",
-               "y" : 5
+               "name" : "Ali Moradi"
             },
             {
                "name" : "Andrezgz",
@@ -30,44 +31,49 @@
                "y" : 2
             },
             {
-               "name" : "Athanasius",
                "drilldown" : "Athanasius",
-               "y" : 4
+               "y" : 4,
+               "name" : "Athanasius"
             },
             {
-               "y" : 2,
+               "name" : "David Ferrone",
                "drilldown" : "David Ferrone",
-               "name" : "David Ferrone"
+               "y" : 2
             },
             {
-               "name" : "E. Choroba",
+               "drilldown" : "E. Choroba",
                "y" : 2,
-               "drilldown" : "E. Choroba"
+               "name" : "E. Choroba"
             },
             {
-               "name" : "Feng Chang",
+               "y" : 2,
                "drilldown" : "Feng Chang",
-               "y" : 2
+               "name" : "Feng Chang"
             },
             {
-               "y" : 2,
                "drilldown" : "Kjetil Skotheim",
+               "y" : 2,
                "name" : "Kjetil Skotheim"
             },
             {
+               "drilldown" : "Laurent Rosenfeld",
+               "y" : 3,
+               "name" : "Laurent Rosenfeld"
+            },
+            {
                "name" : "Mark Anderson",
-               "drilldown" : "Mark Anderson",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "Mark Anderson"
             },
             {
-               "name" : "Matthew Neleigh",
                "drilldown" : "Matthew Neleigh",
-               "y" : 2
+               "y" : 2,
+               "name" : "Matthew Neleigh"
             },
             {
+               "name" : "Niels van Dijke",
                "drilldown" : "Niels van Dijke",
-               "y" : 2,
-               "name" : "Niels van Dijke"
+               "y" : 2
             },
             {
                "name" : "Packy Anderson",
@@ -75,34 +81,34 @@
                "y" : 5
             },
             {
-               "name" : "Peter Campbell Smith",
+               "y" : 3,
                "drilldown" : "Peter Campbell Smith",
-               "y" : 3
+               "name" : "Peter Campbell Smith"
             },
             {
-               "name" : "Peter Meszaros",
                "drilldown" : "Peter Meszaros",
-               "y" : 2
+               "y" : 2,
+               "name" : "Peter Meszaros"
             },
             {
-               "y" : 3,
                "drilldown" : "Reinier Maliepaard",
+               "y" : 3,
                "name" : "Reinier Maliepaard"
             },
             {
                "name" : "Robbie Hatley",
-               "drilldown" : "Robbie Hatley",
-               "y" : 3
+               "y" : 3,
+               "drilldown" : "Robbie Hatley"
             },
             {
-               "drilldown" : "Roger Bell_West",
                "y" : 4,
+               "drilldown" : "Roger Bell_West",
                "name" : "Roger Bell_West"
             },
             {
                "name" : "Thomas Kohler",
-               "drilldown" : "Thomas Kohler",
-               "y" : 4
+               "y" : 4,
+               "drilldown" : "Thomas Kohler"
             },
             {
                "y" : 4,
@@ -111,24 +117,22 @@
             },
             {
                "name" : "W. Luis Mochan",
-               "drilldown" : "W. Luis Mochan",
-               "y" : 3
+               "y" : 3,
+               "drilldown" : "W. Luis Mochan"
             }
          ],
-         "name" : "The Weekly Challenge - 279",
-         "colorByPoint" : 1
+         "name" : "The Weekly Challenge - 279"
       }
    ],
-   "chart" : {
-      "type" : "column"
-   },
-   "legend" : {
-      "enabled" : 0
+   "tooltip" : {
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
+      "followPointer" : 1
    },
    "drilldown" : {
       "series" : [
          {
-            "name" : "Ali Moradi",
+            "id" : "Ali Moradi",
             "data" : [
                [
                   "Perl",
@@ -143,7 +147,7 @@
                   1
                ]
             ],
-            "id" : "Ali Moradi"
+            "name" : "Ali Moradi"
          },
          {
             "data" : [
@@ -152,10 +156,11 @@
                   2
                ]
             ],
-            "name" : "Andrezgz",
-            "id" : "Andrezgz"
+            "id" : "Andrezgz",
+            "name" : "Andrezgz"
          },
          {
+            "id" : "Athanasius",
             "data" : [
                [
                   "Perl",
@@ -166,18 +171,17 @@
                   2
                ]
             ],
-            "name" : "Athanasius",
-            "id" : "Athanasius"
+            "name" : "Athanasius"
          },
          {
             "id" : "David Ferrone",
-            "name" : "David Ferrone",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "David Ferrone"
          },
          {
             "name" : "E. Choroba",
@@ -190,57 +194,74 @@
             "id" : "E. Choroba"
          },
          {
-            "id" : "Feng Chang",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
+            "id" : "Feng Chang",
             "name" : "Feng Chang"
          },
          {
-            "name" : "Kjetil Skotheim",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "name" : "Kjetil Skotheim",
             "id" : "Kjetil Skotheim"
          },
          {
+            "name" : "Laurent Rosenfeld",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ],
+               [
+                  "Raku",
+                  1
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Laurent Rosenfeld"
+         },
+         {
+            "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Mark Anderson",
-            "id" : "Mark Anderson"
+            "name" : "Mark Anderson"
          },
          {
+            "name" : "Matthew Neleigh",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Matthew Neleigh",
             "id" : "Matthew Neleigh"
          },
          {
             "id" : "Niels van Dijke",
-            "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Niels van Dijke"
          },
          {
-            "id" : "Packy Anderson",
             "name" : "Packy Anderson",
             "data" : [
                [
@@ -255,7 +276,8 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Packy Anderson"
          },
          {
             "data" : [
@@ -268,21 +290,20 @@
                   1
                ]
             ],
-            "name" : "Peter Campbell Smith",
-            "id" : "Peter Campbell Smith"
+            "id" : "Peter Campbell Smith",
+            "name" : "Peter Campbell Smith"
          },
          {
-            "name" : "Peter Meszaros",
+            "id" : "Peter Meszaros",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Peter Meszaros"
+            "name" : "Peter Meszaros"
          },
          {
-            "id" : "Reinier Maliepaard",
             "data" : [
                [
                   "Perl",
@@ -293,6 +314,7 @@
                   1
                ]
             ],
+            "id" : "Reinier Maliepaard",
             "name" : "Reinier Maliepaard"
          },
          {
@@ -320,11 +342,10 @@
                   2
                ]
             ],
-            "name" : "Roger Bell_West",
-            "id" : "Roger Bell_West"
+            "id" : "Roger Bell_West",
+            "name" : "Roger Bell_West"
          },
          {
-            "id" : "Thomas Kohler",
             "name" : "Thomas Kohler",
             "data" : [
                [
@@ -335,7 +356,8 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "id" : "Thomas Kohler"
          },
          {
             "id" : "Ulrich Rieke",
@@ -367,15 +389,16 @@
          }
       ]
    },
-   "title" : {
-      "text" : "The Weekly Challenge - 279"
-   },
-   "tooltip" : {
-      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
-      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
-      "followPointer" : 1
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
+      }
    },
-   "xAxis" : {
-      "type" : "category"
+   "legend" : {
+      "enabled" : 0
    }
 }
diff --git a/stats/pwc-language-breakdown-2019.json b/stats/pwc-language-breakdown-2019.json
index f3c7f63766..3f3fb8b5bd 100644
--- a/stats/pwc-language-breakdown-2019.json
+++ b/stats/pwc-language-breakdown-2019.json
@@ -2,15 +2,241 @@
    "xAxis" : {
       "type" : "category"
    },
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2024-07-24 16:51:11 GMT"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "chart" : {
+      "type" : "column"
+   },
    "tooltip" : {
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
       "followPointer" : "true",
-      "headerFormat" : "<span style=\"font-size:11px\"></span>",
-      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
+      "headerFormat" : "<span style=\"font-size:11px\"></span>"
+   },
+   "series" : [
+      {
+         "colorByPoint" : "true",
+         "data" : [
+            {
+               "drilldown" : "001",
+               "y" : 165,
+               "name" : "#001"
+            },
+            {
+               "y" : 133,
+               "drilldown" : "002",
+               "name" : "#002"
+            },
+            {
+               "drilldown" : "003",
+               "y" : 91,
+               "name" : "#003"
+            },
+            {
+               "drilldown" : "004",
+               "y" : 106,
+               "name" : "#004"
+            },
+            {
+               "name" : "#005",
+               "y" : 82,
+               "drilldown" : "005"
+            },
+            {
+               "drilldown" : "006",
+               "y" : 63,
+               "name" : "#006"
+            },
+            {
+               "name" : "#007",
+               "y" : 71,
+               "drilldown" : "007"
+            },
+            {
+               "y" : 82,
+               "drilldown" : "008",
+               "name" : "#008"
+            },
+            {
+               "drilldown" : "009",
+               "y" : 79,
+               "name" : "#009"
+            },
+            {
+               "drilldown" : "010",
+               "y" : 69,
+               "name" : "#010"
+            },
+            {
+               "name" : "#011",
+               "y" : 86,
+               "drilldown" : "011"
+            },
+            {
+               "name" : "#012",
+               "y" : 90,
+               "drilldown" : "012"
+            },
+            {
+               "drilldown" : "013",
+               "y" : 85,
+               "name" : "#013"
+            },
+            {
+               "name" : "#014",
+               "y" : 98,
+               "drilldown" : "014"
+            },
+            {
+               "name" : "#015",
+               "y" : 95,
+               "drilldown" : "015"
+            },
+            {
+               "name" : "#016",
+               "y" : 75,
+               "drilldown" : "016"
+            },
+            {
+               "y" : 83,
+               "drilldown" : "017",
+               "name" : "#017"
+            },
+            {
+               "name" : "#018",
+               "drilldown" : "018",
+               "y" : 82
+            },
+            {
+               "name" : "#019",
+               "y" : 101,
+               "drilldown" : "019"
+            },
+            {
+               "drilldown" : "020",
+               "y" : 100,
+               "name" : "#020"
+            },
+            {
+               "drilldown" : "021",
+               "y" : 72,
+               "name" : "#021"
+            },
+            {
+               "drilldown" : "022",
+               "y" : 72,
+               "name" : "#022"
+            },
+            {
+               "y" : 88,
+               "drilldown" : "023",
+               "name" : "#023"
+            },
+            {
+               "name" : "#024",
+               "y" : 77,
+               "drilldown" : "024"
+            },
+            {
+               "name" : "#025",
+               "drilldown" : "025",
+               "y" : 62
+            },
+            {
+               "drilldown" : "026",
+               "y" : 75,
+               "name" : "#026"
+            },
+            {
+               "y" : 64,
+               "drilldown" : "027",
+               "name" : "#027"
+            },
+            {
+               "name" : "#028",
+               "drilldown" : "028",
+               "y" : 82
+            },
+            {
+               "name" : "#029",
+               "drilldown" : "029",
+               "y" : 83
+            },
+            {
+               "name" : "#030",
+               "drilldown" : "030",
+               "y" : 120
+            },
+            {
+               "name" : "#031",
+               "y" : 93,
+               "drilldown" : "031"
+            },
+            {
+               "name" : "#032",
+               "drilldown" : "032",
+               "y" : 97
+            },
+            {
+               "drilldown" : "033",
+               "y" : 113,
+               "name" : "#033"
+            },
+            {
+               "name" : "#034",
+               "y" : 70,
+               "drilldown" : "034"
+            },
+            {
+               "name" : "#035",
+               "y" : 68,
+               "drilldown" : "035"
+            },
+            {
+               "drilldown" : "036",
+               "y" : 70,
+               "name" : "#036"
+            },
+            {
+               "name" : "#037",
+               "drilldown" : "037",
+               "y" : 70
+            },
+            {
+               "y" : 74,
+               "drilldown" : "038",
+               "name" : "#038"
+            },
+            {
+               "drilldown" : "039",
+               "y" : 68,
+               "name" : "#039"
+            },
+            {
+               "drilldown" : "040",
+               "y" : 77,
+               "name" : "#040"
+            },
+            {
+               "name" : "#041",
+               "y" : 80,
+               "drilldown" : "041"
+            }
+         ],
+         "name" : "The Weekly Challenge Languages"
+      }
+   ],
+   "title" : {
+      "text" : "The Weekly Challenge Language"
    },
    "drilldown" : {
       "series" : [
          {
-            "id" : "001",
             "name" : "001",
             "data" : [
                [
@@ -25,7 +251,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "001"
          },
          {
             "data" : [
@@ -42,12 +269,10 @@
                   10
                ]
             ],
-            "name" : "002",
-            "id" : "002"
+            "id" : "002",
+            "name" : "002"
          },
          {
-            "id" : "003",
-            "name" : "003",
             "data" : [
                [
                   "Perl",
@@ -61,7 +286,9 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "003",
+            "id" : "003"
          },
          {
             "id" : "004",
@@ -100,7 +327,7 @@
             "id" : "005"
          },
          {
-            "name" : "006",
+            "id" : "006",
             "data" : [
                [
                   "Perl",
@@ -115,10 +342,9 @@
                   7
                ]
             ],
-            "id" : "006"
+            "name" : "006"
          },
          {
-            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -133,10 +359,10 @@
                   10
                ]
             ],
+            "name" : "007",
             "id" : "007"
          },
          {
-            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -151,10 +377,11 @@
                   12
                ]
             ],
-            "name" : "008"
+            "name" : "008",
+            "id" : "008"
          },
          {
-            "id" : "009",
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -169,9 +396,10 @@
                   13
                ]
             ],
-            "name" : "009"
+            "id" : "009"
          },
          {
+            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -186,12 +414,9 @@
                   11
                ]
             ],
-            "name" : "010",
-            "id" : "010"
+            "name" : "010"
          },
          {
-            "id" : "011",
-            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -205,10 +430,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "011",
+            "id" : "011"
          },
          {
-            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -223,7 +449,8 @@
                   11
                ]
             ],
-            "id" : "012"
+            "id" : "012",
+            "name" : "012"
          },
          {
             "name" : "013",
@@ -244,7 +471,7 @@
             "id" : "013"
          },
          {
-            "id" : "014",
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -259,10 +486,9 @@
                   15
                ]
             ],
-            "name" : "014"
+            "id" : "014"
          },
          {
-            "id" : "015",
             "data" : [
                [
                   "Perl",
@@ -277,9 +503,11 @@
                   15
                ]
             ],
+            "id" : "015",
             "name" : "015"
          },
          {
+            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -294,11 +522,9 @@
                   13
                ]
             ],
-            "name" : "016",
-            "id" : "016"
+            "name" : "016"
          },
          {
-            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -313,10 +539,11 @@
                   12
                ]
             ],
+            "id" : "017",
             "name" : "017"
          },
          {
-            "name" : "018",
+            "id" : "018",
             "data" : [
                [
                   "Perl",
@@ -331,10 +558,9 @@
                   14
                ]
             ],
-            "id" : "018"
+            "name" : "018"
          },
          {
-            "id" : "019",
             "name" : "019",
             "data" : [
                [
@@ -349,10 +575,10 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "019"
          },
          {
-            "id" : "020",
             "name" : "020",
             "data" : [
                [
@@ -367,9 +593,11 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "020"
          },
          {
+            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -384,11 +612,9 @@
                   10
                ]
             ],
-            "name" : "021",
             "id" : "021"
          },
          {
-            "id" : "022",
             "data" : [
                [
                   "Perl",
@@ -403,6 +629,7 @@
                   10
                ]
             ],
+            "id" : "022",
             "name" : "022"
          },
          {
@@ -424,6 +651,7 @@
             "id" : "023"
          },
          {
+            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -438,12 +666,9 @@
                   11
                ]
             ],
-            "name" : "024",
             "id" : "024"
          },
          {
-            "id" : "025",
-            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -457,10 +682,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "025",
+            "id" : "025"
          },
          {
-            "id" : "026",
             "name" : "026",
             "data" : [
                [
@@ -475,10 +701,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "026"
          },
          {
-            "id" : "027",
+            "name" : "027",
             "data" : [
                [
                   "Perl"